Electroluminescent display device
a technology of display device and electroluminescent light, which is applied in the direction of basic electric elements, semiconductor devices, electrical equipment, etc., can solve the problems of reducing the productivity of mass production, increasing manufacturing costs, and increasing manufacturing costs, and achieves the effect of preventing emission layers and high resolution
Active Publication Date: 2019-10-15
LG DISPLAY CO LTD
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Benefits of technology
This configuration enables the formation of high-resolution electroluminescent display devices by preventing emission layer mixing and allowing for precise control over layer formation, even with smaller sub-pixel sizes, thereby enhancing manufacturing efficiency and productivity.
Problems solved by technology
However, if the emission layers 41, 42, and 43 are patterned by the vacuum deposition process, it is necessary to use a high-priced vacuum deposition apparatus, thereby causing the increase of manufacturing cost.
Especially, if manufacturing a large-sized electroluminescent display device, it inevitably causes the increase of manufacturing cost due to the increased size of mask and vacuum deposition apparatus, thereby lowering productivity for mass production.
However, in case of the related art electroluminescent display device, it has limitations on resolution.
However, it has limitation of size reduction in the nozzle of the inject apparatus.
Accordingly, it is difficult to make the size of the area in each emission layer 41, 42, and 43 be less than a predetermined value, whereby it is also difficult to realize the high-resolution electroluminescent display device.
Method used
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[0035]Advantages and features of the present invention, and implementation methods thereof will be clarified through following embodiments described with reference to the accompanying drawings. The present invention may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art. Further, the present invention is only defined by scopes of claims.
[0036]A shape, a size, a ratio, an angle, and a number disclosed in the drawings for describing embodiments of the present invention are merely an example, and thus, the present invention is not limited to the illustrated details. Like reference numerals refer to like elements throughout. In the following description, when the detailed description of the relevant known function or configuration is determined t...
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Disclosed is an electroluminescent display device that may include a plurality of pixels arranged in first and second directions, first, second, and third sub pixels provided in each of the plurality of pixels and arranged in the first direction, a first emission layer provided to correspond to at least two of the first sub pixels arranged in the second direction, a second emission layer provided to correspond to at least two of the second sub pixels arranged in the second direction, and a third emission layer provided to correspond to at least two of the third sub pixels arranged in the second direction, wherein the first emission layer, the second emission layer, and the third emission layer are spaced from one another and provided to emit different types of light.
Description
CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of the Korean Patent Application No. 10-2016-0181383 filed on Dec. 28, 2016, which is hereby incorporated by reference as if fully set forth herein.BACKGROUNDField of the Disclosure[0002]Embodiments of the present invention relate to an electroluminescent display device, and more particularly, to an electroluminescent display device manufactured by a solution process.Discussion of the Related Art[0003]An electroluminescent display device is provided in such way that an emission layer is formed between two electrodes. According as the emission layer emits light by an electric field between the two electrodes, an image is displayed on the electroluminescent display device.[0004]The emission layer may be formed of an organic material which emits light when exciton is produced by a recombination of electron and hole, and the exciton falls to a ground state from an excited state. Alternatively, the emission ...
Claims
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IPC IPC(8): H01L27/32H01L51/50H01L51/52
CPCH10K59/353H10K59/80515H10K59/122H10K50/11H10K50/81H10K50/822H10K59/352
InventorKIM, KANGHYUN
OwnerLG DISPLAY CO LTD